Calibers: 357 Magnum or 45 Colt. Barrels: 4.75”, 5.5”, 7.5”. Features: Series of Single Action Army-style revolvers made in many variations. Values are for the Gunfighter w/blued and color case finish. Subtract 16% for Bird’s Head 3.5” or 4.5” barrel with walnut grips; add 32% for nickel and stainless steel; add 37% for engraved variants.